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增加阳极表面积对在连续单腔生物电化学系统中缺乏亚酸盐的氨氧化的影响

Rahul Kadam¹, Sangyeol Jo¹, Jihwan Cha²

¹Department of Advanced Energy Engineering, Chosun University, Gwangju, 61452, Republic of Korea.

|March 2, 2024

概括

这项研究引入了一种新的生物电化学无氧氧化 (BE-ANAMMOX) 工艺,用于有效去除. 该过程显著减少了能源消耗和二氧化碳排放,而不需要氧气或酸盐.

科学领域:

环境科学环境科学
电化学电化学电化学
微生物学微生物学

背景情况:

传统的去除方法耗费大量能源.
迫切需要可持续的替代品.
清除氨 (NH4+-N) 对于废水处理至关重要.

研究的目的:

开发一种高效的依赖电极的生物电化学无氧氧化 (BE-ANAMMOX) 工艺.
评估BE-ANAMMOX在NH4+-N去除和能源效率方面的性能.
在这个过程中调查微生物社区的变化.

主要方法:

使用碳刷作为电子接受器,应用于0.8V的电压.
使用生物电化学无氧氨氧化氧化 (BE-ANAMMOX).
分析微生物群落,以确定关键的物种.

主要成果:

达到最大的NH4+-N去除效率为41%,Coulombic效率为40.92%.
已证明100%消除O2和NO2-N的要求.
每公斤处理的NH4+-N的能量消耗降低了67%,二氧化碳排放减少了66%.

结论:

BE-ANAMMOX工艺提供了一种可持续和节能的去除方法.
通过细胞外电子转移直接将NH4+-N转化为N2是可以在没有酸盐的情况下实现的.
这项技术显示了废水处理应用的巨大潜力.

关键词:

亚纳姆莫克斯 (ANAMMOX) 是一个无人机.生物电化学系统生物电化学系统碳刷是一种碳刷.细胞外电子转移细胞外电子转移移除的方法移除的方法

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